Family Paramphistomidae

Gastrodiscus secundus

Myocastor coypus, Uruguay, Travassos & Vogelsang (1930).

Paramphistomum sp.

Myocastor coypus, Unspecified locality, Gebauer (1932) in Babero & Lee (1961).

Stichorchis waltheri

Myocastor coypus, Unspecified locality, Grieder (1937) in Babero & Lee (1961).